Slide carrier for projection apparatus



J. KOTHlRINGE R.

SLIDE CARRIER FOR PROJECTION APPARATUS.

APPLICATION FILED JULY 17, I919.

Patented Mar. 14, 1922.

INVENTOR.

JOSEPH KOTHIRINGER HIS ATTORNEY UNITED STATES PATENT OFFICE.

JOSEPH KOTHIRINGER, OF ROCHESTER, NEW YORK, ASSIGNOR TO BAUSCH & LOMB OPTICAL COMPANY, OF ROCHESTER, NEW YORK, A CORPORATION OF NEW YORK.

SLIDE CARRIER FOR PROJECTION APPARATUS.

Application filed July 17,

To all whom it ma concern:

Belt known that JOSEPH Ixorrnnmonn,

a citizen of the United States, residing at Rochester, in the county of Monroe and State' of New York, have invented certain new and useful Improvements in Slide Carriers for Projection Apparatus; and I do hereby declare the following to, be a full,

clear, and exact description of the same, reference being made to the accompanying drawings, forming a part of th1s speclfication, and to the reference numerals marked in the application for patent for automatic projection'apparatus of William L. Patterson, Ser. No. 156,553, filed March 22,1917. The object of my invention is to provide afslide carrier of this kind which canfbe cheaply constructed from sheet metal and which can be easily assembled and disassembled for the purpose of increasing or decreasing the number of slide frames in the carrier. A further object of my invention is to provide a slide carrier constructed of a plurality of sheet metal frames hinged to eaclrother along the edges of their bases and each adapted to contain a slide. A further object of my invention is to provide a slide frame for a slide carrier which is constructed of sheet metal channeled to provide .grooves for retaining the slide and improved means for securing the slide in the frame.

Referring more particularly to the drawmgs:

Figure 1 is a perspective view of a slide carrier constructed according to my inven tion.

Figure 2 is a perspective view of a slide frame detached from the carrier, the hinge member and cap member being detached for clearness.

Figure 3 is a perspective view of the slide frame with the cap member detached.

Figure 4 is a sectional view through the base of the slide frame.

Figure 5 is a sectional view through the side of the slide frame.

Figures 6, 7 and 8 are detailed sectional views showing a modified construction for mounting the cap on the frame.

My improved slide carrier shown in Fig- Specification of Letters Patent.

Patented Mar. 14, 1922. 1919. Serial No. 311,402.

are 1 comprises a plurality of slide frames 1 hinged together along the edges of their bases as at 2 and 3 to form an endless flexible carrier. The pintles of the hinges are readily removable for the purpose of detaching one or more of the frames from the carrier or adding more frames thereto. Each of the frames comprises a U shaped member having channeled end portions 4 and 5 and connected by an integral base member 6 which can be stamped from a single piece of sheet metal. For the purpose of stiffening and strengthing the frame a corrugation or rib 7 may be stamped on one side thereof as clearly shown Figure 3. The side portions 4 and 5 are formed to provide channels open at the outer ends of said portions to provide slots for engaging the edges of a slide which is adapted to rest upon the'base member of. the frame. The base member is formed integral with the members 4 and 5 by bending over the member 6 against bent up portions 4 and 5 at the bases of the side portions 4 and 5. Secured to the bases 6 of each of the frames is a hinge member 8 having turned up portions 9 and 10 atits sides to provide hinge portions adapted to co-operate with pintles 11 by which adjacent frames are pivotally con nected to each other. The member 8 may be welded electrically, soldered or otherwise secured to the frame member 6. For retaining the slide within the frame members 4 and 5 a cap member 12 is employed. The cap member shown in Figure 2 is channeled and stamped out of sheet metal and provided with leaf spring securing members 13 at its ends adapted to engage projections 14 on the side members 4 and 5. The projections 14 are formed integral with the portions 4 and 5 and stamped up from the same piece of sheet metal. It will be noted that by this construction the channeled cap members 12 can bereadily removed or applied to the frame members and are held in position by the engagement of the members 13 with the members 14. In order to prevent rattling of the slide in the frame or movement of the slide relatively to the frame in which it is mounted a leaf spring 15 may be secured in the groove or channel of the ca member to resiliently engage the edge of t e slide. Referring to the modification shown in Figures 6, 7 and 8 the upper end of one of the members 4: or 5 is provided with a, hinge member 20 strucki upv from the material of the side member and one end of the cap member 12 is provided with a co-operating hinge member 21, the

other end of the cap member 12 being formed vwith anflengaging spring member 13 as shown in Figure 2. Inassembling the form shown in Figures 6, 7 and 8 the hinge member on the cap isfirst bent over upon itself within the groove as-shown at 22in Figure 7. It is then placed over the hinge memberQO and bentto the position shown in Figure 8. In a modified form shown in Figures 6, 7 and 8, the cap member 12 is hinged or pivoted to the side mem-, ber and when in closed position engages the member 14 of the other. side; member, This form is in many respects to be. pre: ferred, since the cap member islpermanently secured to. the slide frame and is muchsim pler to, manipulatethan a cap member such as shown in Figure 2., I

I claim as my invention; p

1 Aslide carrier for projection lanterns, comprising a, plurality of frames each having channeled end membersopen at their outer ends and adapted to receiveia lantern slide;betwen them, a base member connecting said end members, means on the sides of said base member for hingingthe frame between adjacentframes, and means for retaining a lantern slide inthe frame.

2. A slide carrier for projection lanterns, comprising a plurality of frames each-having channeled end members open attheir outer ends and connected at their bases and adapted to receive a lantern slidebetween them, a

base member connecting said end members,

hinge portions permanently secured on opposite sides of :said base member removably ends to receive a slide, a baseimembericonnecting said end members, a hinge member formed at the upper end'of one ofsaid end channel 1 members i and lntegral therewith, a

sheet metal cap having aff member compcrating with tlie'hinge H18I Ilb61f 'On S3 l Cl channel. member and adapted to engage the th r hann me e ndfi se h pper ends .ofthe channels, and. resilient means for engagement, with; the slide" when said cap is closed on the frame to preventmovement ofthe slide in theframe 4:. A slide carrier for projection appa ratus comprising a plurality of sheet ;metal members veach having ,hingeportions on 0pposite sides; adapted to receive a; pintle r by th y are, etacha ly ingel Q- gether to form an endlessflcarrien-a slide frame on each of a said members comprising a l P ed ee etal pr i ed with a flange permanently secured to said member and having spaced channeled-endmems bers open at their outer ends to receijve a slide, and a capremovably secured to the outer ends of said end members to hold the slide invthe] frame.

' JOSEP K.OTHIBIN i 4 .v 

